High severity · published Jan 15, 2026
CVE-2026-23622
CSRF Protection Bypass: Sensitive endpoints accept GET requests, enabling admin account takeover
8.8
CVSS
0.2%
EPSS
No
On KEV
Description
Easy!Appointments is a self hosted appointment scheduler. In 1.5.2 and earlier, application/core/EA_Security.php::csrf_verify() only enforces CSRF for POST requests and returns early for non-POST methods. Several application endpoints perform state-changing operations while accepting parameters from GET (or $_REQUEST), so an attacker can perform CSRF by forcing a victim's browser to issue a crafted GET request. Impact: creation of admin accounts, modification of admin email/password, and full admin account takeover.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EA
easyappointments · alextselegidis
<= 1.5.2 · source: vendor
EA
Easy!appointments · Easyappointments
through 1.5.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-23622
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-23622
Exploit
https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-54v4-4685-vwrj
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